Daydream Silicon Valley
A free, teen-organized weekend game jam in San Jose where participants ages 12-18 design and deploy an original game to itch.io within 48 hours, with no experience required and beginner workshops offered on-site. Part of Hack Club's Daydream network of simultaneous teen game jams held in 100 cities, the event provides meals, merchandise, prizes, and travel reimbursement for those coming from farther away.
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GameGala
Billed as the largest game-specific K-12 contest in the U.S., GameGala started in California in 2018 with 80 participants and has grown into a global virtual competition (hosted by the K12 Ventures Foundation) where students build original games solo or in teams of up to three. High schoolers compete in their own age division for placement awards and special recognitions like the Innovation Award and Best Teamwork.
Datathon (CP Mentorship)
A one-day, in-person data science challenge co-hosted by CP Mentorship, Women in Data Science Worldwide, and Silicon Valley Youth at Google's Mountain View campus. High school teams analyze real-world datasets (e.g., wildfire response data) with mentor guidance; open to all experience levels.
Immerse Education Software Development & AI Summer Programme (Bay Area)
A one-week overnight coding and AI summer program hosted at UC Berkeley for students ages 15-18, covering programming fundamentals, algorithms, data structures, applied AI, and game design, with career-skills sessions and one-on-one coaching from industry professionals. The program emphasizes exposure to Silicon Valley's tech and gaming industries alongside hands-on coding projects.
Mechanics' Institute San Francisco Scholastic Chess Championship
A free, all-day scholastic chess tournament hosted each spring by the Mechanics' Institute - the oldest continuously operating chess club in the U.S. - drawing 300+ young players from kindergarten through 12th grade to Yerba Buena Gardens in San Francisco. The Institute also runs year-round scholastic classes, school-break chess camps, and free chess instruction for Title 1 San Francisco schools.
ACE Mentor Program - San Francisco Bay Area
A free after-school mentorship program pairing Bay Area high school students (grades 9-12) with volunteer architects, engineers, and contractors. Teams work through mock building-design projects, visit real job sites and professional offices, and present their solutions at a year-end showcase.
American Legion Oratorical Contest – California
The American Legion's High School Oratorical Scholarship Program is a constitutional speech contest requiring students to deliver original orations on the U.S. Constitution and citizens' duties to government. California students compete through post, district, and area rounds before an annual Department (state) final, with winners advancing toward national competition for college scholarships.